CN107209328A - Wavelength-selective switches with the increase frequency interval for avoiding crosstalk - Google Patents
Wavelength-selective switches with the increase frequency interval for avoiding crosstalk Download PDFInfo
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- CN107209328A CN107209328A CN201680009462.7A CN201680009462A CN107209328A CN 107209328 A CN107209328 A CN 107209328A CN 201680009462 A CN201680009462 A CN 201680009462A CN 107209328 A CN107209328 A CN 107209328A
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- 230000003287 optical effect Effects 0.000 claims abstract description 69
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 239000006185 dispersion Substances 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 8
- 230000003321 amplification Effects 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 2
- 230000001154 acute effect Effects 0.000 claims 1
- 239000013307 optical fiber Substances 0.000 description 21
- 239000000835 fiber Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/35—Optical coupling means having switching means
- G02B6/354—Switching arrangements, i.e. number of input/output ports and interconnection types
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
- H04J14/0212—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] using optical switches or wavelength selective switches [WSS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0016—Construction using wavelength multiplexing or demultiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0024—Construction using space switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0026—Construction using free space propagation (e.g. lenses, mirrors)
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0026—Construction using free space propagation (e.g. lenses, mirrors)
- H04Q2011/003—Construction using free space propagation (e.g. lenses, mirrors) using switches based on microelectro-mechanical systems [MEMS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0007—Construction
- H04Q2011/0035—Construction using miscellaneous components, e.g. circulator, polarisation, acousto/thermo optical
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0037—Operation
- H04Q2011/0049—Crosstalk reduction; Noise; Power budget
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The function of two or more wavelength-selective switches is integrated into identical physical arrangement by optics.The wavelength components associated with the first photoswitch are isolated by carrying out the space displacement wavelength components associated with the second photoswitch along an axis on programmable optical phase-modulator.Separate the composition of wavelength two lambda switch of identical to reduce the remaining crosstalk between the composition by another axial space along the programmable optical phase-modulator.
Description
Background technology
In optical communication network, the optical signal for having multiple optical channels on Single wavelength (channel) generally can be by an optical fiber
Another place is sent to from a place.Optical cross connect module can allow optical signal to switch to another light from an optical fiber
It is fine.Wavelength selective optical interconnection or wavelength-selective switches (WSS) allow to reconfigure wavelength related exchange, that is to say, that permit
Perhaps some wavelength channels are switched into the second optical fiber from the first optical fiber, while allowing other wavelength channels to be passed in the first optical fiber
It is defeated, or allow some wavelength channels switching to the 3rd optical fiber.Due to Single wavelength channel light-path or again can be automatically created
New selection route, the light network architecture exchanged based on wavelength selective optical has many noticeable features.It can accelerate
Service arrangement, accelerates the rerouting around light net trouble point, reduces fund input and the running cost of service provider, and
The network topology faced the future can be created.
In some cases, the lambda switch of a variety of difference in functionalitys can share same group of optical element, e.g., lens, dispersion
Element and spatial light modulator.This wavelength-selective switches may occur bad between each channel that difference in functionality is switched
Crosstalk.
Brief description of the drawings
Fig. 1 is the functional block diagram of an example of wavelength-selective switches；
Fig. 2 can be used as the front view of the LCoS devices of the spatial light modulator of optics shown in Fig. 1；
Fig. 3 is the front view of LCoS devices, wherein, the mutual space of wavelength components of two wavelength-selective switches separates；
Fig. 4 A and Fig. 4 B are respectively one of simplified optics (e.g., free space wavelength selecting switch WSS 100) and shown
The top view and side view of example, free space wavelength selecting switch WSS 100 therein can be combined with embodiments of the invention
Use；
Fig. 5 is the front view of LCoS devices shown in Fig. 2 and Fig. 3, wherein, the wavelength components of the first optical switch are along first
Wavelength dispersion axis extends, and the wavelength components of the second optical switch extend along second wave length dispersion axis.
The content of the invention
According to the one side of the disclosure, optics includes optical port array, dispersion element, concentrating element and may be programmed
Optical phase modulator.Optical port array have be used for receive light beam more than first port and for receiving light beam more than second
Individual port.Offset axis extends through both the first and second planes.Port in more than first port is along offset axis from
Port lateral displacement in more than two port.Dispersion element receives the first light beam in light beam from one in more than first port
With the second light beam received from more than second port in light beam.Dispersion element is along the first and second wavelength dispersion axis by light beam
Space is separated into each more than first and second wavelength components.More than first port has the optical axis extended in a first direction, and
More than second port has the optical axis extended in a second direction.First and second directions are different from each other.In first and second directions
At least one is non-orthogonal with port axis.Concentrating element focuses on more than first and second wavelength components.Programmable optical phase is adjusted
Multiple wavelength components of device collectiong focusing processed.The programmable optical phase-modulator is configured to from more than first port
Any one wavelength components received guide the selected port into more than first port, and be further configured
Into will be guided from any one wavelength components received in more than second port into more than second port
Selected port.
Embodiment
Fig. 1 is the functional block diagram of an example of wavelength-selective switches (WSS) 100, in some cases, wavelength selection
Switch 100 can further comprise integrated channel monitor.As illustrated, showing 3 kinds of different functions in figure：21 × n
WSS, is represented with WSS 10 and WSS 20, and 1 optical channel monitor 30 (OCM).It should be understood, however, that as follows
Described, 3 kinds of different functions can be incorporated into a single one physical switching equipment.
WSS 10 includes input port 12 and output port 141、142、143、144With 145(“14”).Switching fabric 16 will be defeated
Inbound port 12 is optically coupled to output port 14, and making can be in switch controller 40 in the optical signalling that output port 12 is received
The a port into output port 14 is optionally guided under control.Similarly, WSS 20 includes input port 22 and defeated
Exit port 241、242、243、244With 245(“24”).Input port 22 is optically coupled to output port 24 by switching fabric 26, is made
Optionally guided to output port 24 under control of the optical signalling that output port 22 is received in switch controller 40
In a port.
It should be noted that although WSS 10 and WSS 20 are described as having 5 output ports, it is however generally that,
It can use any number of output port, and output port quantity in 2 function element can be with identical, can also not
Together.
The function of optics as shown in Figure 1 is using the most of identical optical element of two optical switch functions
To realize.Such as LCoS spatial light modulators can be used in the device, and LCoS can be shared by two wavelength-selective switches.
Fig. 2 can be used as the front view of the LCoS devices 21 of the spatial light modulator of optics shown in Fig. 1.Optics is opened
3 wavelength components λ of first optical switch in the Central Shanxi Plain1、λ2And λ3Along the upper shown partially of LCoS devices 21.3 wavelength components
λ1、λ2And λ3Separate along wavelength dispersion axis (x-axis) space, and extend along multiple pixels 19 of LCoS devices 21.On the contrary, light
Learn 3 wavelength components λ ' of the second optical switch of switch1、λ’2And λ '3It is shown partially under along LCoS devices 21.The wavelength into
Divide λ '1、λ’2And λ '3Also it can separate along wavelength dispersion axis (x-axis) space.Although it should be noted that wavelength shown in figure into
The light beam divided has oval cross section, still, it is however generally that, the cross section of light beam can be arbitrary shape, including but not limit
In circular and crescent.In addition, it will be appreciated by those of ordinary skill in the art that the quantity of wavelength components can be in different embodiments
In it is different, and 3 wavelength components shown in figure are used for illustrative purposes only.
The wavelength components associated with the first optical switch are by the mutual space displacement between wavelength components along y-axis and second
The associated wavelength components of optical switch are isolated, and y-axis therein in this article refers to port axis.However, crosstalk is still deposited
In (e.g., the wavelength components λ of the first optical switch especially between the composition of two optical switches of wavelength identical1With second
The wavelength components λ ' of optical switch1Between).A kind of method for reducing crosstalk separates wavelength two light of identical for further space
Learn the composition of switch.
A kind of method for completing additional isolation is to make (associated with first switch) first group of wavelength components along wavelength color
Dissipate axis (e.g., the x-axis shown in Fig. 2) and be spatially offset from (associated with second switch) second group of wavelength components.Also
It is to say, (e.g., wavelength is to λ to being deviated from each other along wavelength dispersion axis for the respective wavelength in every group of composition1And λ '1Deviate from each other, ripple
Length is to λ2And λ '2Deviate from each other, and wavelength is to λ3And λ '3Deviate from each other).Fig. 3 is the front view of LCoS devices 21, therein
Wavelength components with regard to carrying out space separation in this way.Offset can be it is specific, can also in different embodiments it is each not
It is identical.However, additional isolation largely generally realizes that offset therein, which is compared, to be not less than using skew
Beam effective diameter.For example, the offset between half beam diameter and 2 beam diameters has in kinds of schemes
Effect, is remarkably improved isolation effect.
Below in conjunction with Fig. 4 A and Fig. 4 B to an example available for the WSS for providing wavelength components form (such as institute in Fig. 3
Show) illustrate.
Fig. 4 A and Fig. 4 B are simplified optics (e.g., free space wavelength selecting switch WSS 100) top view respectively
And side view, free space wavelength selecting switch WSS 100 therein can be combined with embodiments of the invention to be used.Light can lead to
Fiber waveguide (e.g., optical fiber) input and output WSS 100 are crossed, fiber waveguide therein is used as input port and output port.Optical fiber
Collimator array 101 include the First Series optical fiber 120 associated with WSS 10 shown in Fig. 1 and with WSS 20 shown in Fig. 1
Associated second series optical fiber 130.Every single optical fiber is associated with collimater 102, and the collimater 102 can be by from every
The light of root optical fiber is converted into free space beam.
As best shown in Fig. 4 b, the optical fiber 120 in the first series of fibers 1201、1202、1203With 1204With the second optical fiber
Optical fiber 130 in series 1301、1302With 1303It is cross-linked.Similarly, as shown in fig 4b, the optical fiber in First Series 120
It is angularly offset from the optical fiber in the second series of fibers 130.The deviation angle makes the WSS 10 different from two and the phases of WSS 20
(port axis) carries out spatial deviation (as shown in Figure 2) to the wavelength of association in the y-direction on LCoS devices 21.
As best shown in Fig. 4 A, the optical fiber in the first series of fibers 120 extends along the first public face, and therein first is public
The coplanar y-z plane for shown in Fig. 4 A and Fig. 4 B.On the contrary, the optical fiber in the second series of fibers 130 prolongs along the second public face
Stretch, the second public face therein is parallel and offset from the first public face.Offset between first and second series of fibers makes and the
Along the x directions (wavelength dispersion axis) shown in Fig. 3 between common wavelength composition associated one WSS 10 and the 2nd WSS 20
Carry out spatial deviation.
The free space beam of a pair of telescopes or optical beam expander amplification from array of ports 101.First telescope or
Optical beam expander is formed by optical element 106 and 107, and the second telescope or optical beam expander are by the shape of optical element 104 and 105
Into.
In Fig. 4 A and Fig. 4 B, the optical element of light is influenceed to be expressed as in two diagrams with solid line in two axial lines
Biconvex lens optics.And on the other hand, only the optical element of influence light is then expressed as with solid line on an axis
Planoconvex spotlight on impacted axis.The optical element of light is only influenceed on an axis by further with impregnable axle
Dotted line on line is represented.For example, in Fig. 4 A and Fig. 4 B, optical element 102,108,109 and 110 is in two figures with solid line table
Show.And on the other hand, optical element 106 and 107 is represented (because optical element has focusing energy along y-axis with solid line in Figure 4 A
Power), and (because optical element does not influence light beam along y-axis) is represented by dotted lines in figure 4b.Optical element 104 and 105 is in Fig. 4 B
In (because optical element has focusing power along x-axis) is represented with solid line, and be represented by dotted lines in Figure 4 A (because optical element is not
Light beam is influenceed along y-axis).
Each telescope can create different multiplication factors in the x and y direction.For example, by optical element 104 and 105
Formed in the x direction amplification light telescope magnifying power can be less than by optical element 106 and 107 formed in y directions
The magnifying power of the telescope of upper amplification light.
This pair of telescope amplifies the light beam from array of ports 101, and amplification light beam light is coupled into waveguide dispersive elements
108 (e.g., diffraction grating or prisms), waveguide dispersive elements 108 therein by the free light beam in space be separated into composition wavelength or
Channel.The waveguide dispersive elements 108 are according to wavelength on the x-y plane along different directions dispersion light.Light from dispersion element
Line is directed to beam focusing optics 109.
Wavelength components from waveguide dispersive elements 108 are coupled to programmable optical phase by beam focusing optics 109
Modulator, for example, programmable optical phase-modulator therein can be the phase-modulation based on liquid crystal of such as LCoS devices 110
Device.The programmable optical phase-modulator produces phase shift on each pixel of it, and pixel therein is to improve on the whole surface
The pixel of phase shifted waveforms.As shown in figure 3, wavelength components can be along x-axis dispersion.Therefore, the wavelength components of each setted wavelength can
Focus on the pel array 19 extended in the y-direction.With λ in Fig. 4 A1、λ2And λ3Represent 3 have centre wavelength wavelength into
Dividing and (being only for example, be not limitation scope) can focus on LCoS devices 110 along wavelength dispersion axis (x-axis).
As best shown in Fig. 4 B, after the reflection of LCoS devices 110, each wavelength components can pass through beam focusing optical
The selected optical fiber that element 109, waveguide dispersive elements 108 and the feedback of optical element 106,107 are coupled in array of ports 101.Cause
This, carries out appropriate operation to pixel 19 in y-axis and optionally individually guides each wavelength components to selected output
Optical fiber.
In above-mentioned example, wavelength dispersion axis is overlapped with pixel grid axis.However, in general, wavelength
Dispersion axis can extend on LCoS devices 21 along any direction.In addition, the wavelength components associated with the first optical switch with
And can separate from the wavelength components that the second optical switch is associated along different wavelength dispersion axial spaces.For example, Fig. 5 is shown
The front view of LCoS devices 21 shown in Fig. 2 and Fig. 3, wherein, three wavelength components λ of the first optical switch1、λ2And λ3Along
One wavelength dispersion axis 510 extends, and three wavelength components λ ' of the second optical switch1、λ’2And λ '3Along second wave length dispersion axle
Line 520 extends.As illustrated, the first and second wavelength dispersion axis are not parallel to each other, and the first and second wavelength dispersions
Pixel grid of any one axis not with LCoS devices 21 in axis is overlapped.Wavelength dispersion axis can be in several ways
It is defined.For example, can carry out linear fit to define wavelength color to the mass centre of each light beam along every axis extension
Dissipate axis.If desired, also a mean dispersion axis can be defined for two wavelength dispersion axis.As shown in figure 5, in every composition
, can be by referring to appropriate shafting (including wavelength dispersion axle along the offset of offset axis 530 between respective wavelength composition in point
Line, pixel grid axis and mean dispersion axis etc.) calculated.
Claims (18)
1. a kind of optics, including：
Optical port array, with for receiving more than first port of light beam and more than second port for receiving light beam,
Offset axis extends through port in both the first plane and the second plane, more than first port along the offset axis
Port lateral displacement from more than second port；
Dispersion element, from one in more than first port the first light beam received in the light beam and from more than described second
Receive the second light beam in the light beam in individual port, and along first wave length dispersion axis and second wave length dispersion axis by institute
State light beam space and be separated into each more than first wavelength components and more than second wavelength components, more than first port has edge
The optical axis of first direction extension, and more than second port has the optical axis that extends in a second direction, the first direction and
Second direction is different from each other, and at least one in the first direction and second direction and port axis are non-orthogonal；
Concentrating element, for focusing on more than first wavelength components and more than second wavelength components；And
Programmable optical phase-modulator, for multiple wavelength components of collectiong focusing, the modulator is configured to from described
Any one wavelength components received in more than first port guide the selected port into more than first port, and
And be further configured to guide to described from any one wavelength components received in more than second port
Selected port in more than two port.
2. optics according to claim 1, wherein, both the first direction and second direction not with it is described partially
Axis vertical take-off is moved, and mutually forms the acute angle more than 0 °.
3. optics according to claim 1, wherein, more than first port is along the port axis and described the
More than two port interleaving connection.
4. optics according to claim 1, wherein, the first wave length dispersion axis and second wave length dispersion axis
And the programmable optical phase-modulator it is coplanar one on extend.
5. optics according to claim 1, wherein, more than first port extends on the first plane, and institute
More than second port is stated in second plane parallel with first plane to extend.
6. optics according to claim 5, wherein, the offset axis is orthogonal extend through first plane and
Both second planes.
7. optics according to claim 1, wherein, the programmable optical phase-modulator includes the phase based on liquid crystal
Position modulator.
8. optics according to claim 7, wherein, the phase-modulator based on liquid crystal is LCoS devices.
9. optics according to claim 1, wherein, in the group that the dispersion element is constituted from diffraction grating and prism
Selection.
10. optics according to claim 1, further comprises optical system, for amplifying from the optical port
The light beam that array received is arrived, and the light beam after amplification is guided to the dispersion element.
11. optics according to claim 10, wherein, the optical system has the first amplification on first direction
Multiple and the second multiplication factor being orthogonal in the second direction of the first direction, first multiplication factor and described second
Multiplication factor is different.
12. optics according to claim 11, wherein, in the first direction and the wavelength dispersion axis extremely
Few one parallel, and light beam is separated along the wavelength dispersion axis by space, and first multiplication factor is less than the described second amplification
Multiple.
13. a kind of be used to from the input port of array of ports guide light beam wavelength composition at least one output of array of ports
The method of port, including：
The first light beam is received in the first input port of the array of ports associated with first wave length selecting switch；
The second light beam is received in the second input port of the array of ports associated with second wave length selecting switch；
Space separates the wavelength components of first light beam and the second light beam；
The wavelength components that space separates are focused on programmable optical phase-modulator, make first light beam and the second light beam
Wavelength components separate along at least one pixel axial space on the modulator, and the wavelength components of first light beam are described in
Pixel axis is spatially offset from the wavelength components of second light beam；And
The phase shifted waveforms of the programmable optical phase-modulator are modulated, will optionally be received from the first input port
The single compositions of wavelength components guide to the another port of the array of ports associated with the first wave length selecting switch, go forward side by side
One step be configured to optionally by the single composition of the wavelength components received from second input port guide to it is described
The another port of the array of ports of second wave length selecting switch association.
14. method according to claim 13, wherein, the programmable optical phase-modulator includes the phase based on liquid crystal
Modulator.
15. method according to claim 14, wherein, the phase-modulator based on liquid crystal is LCoS devices.
16. method according to claim 13, further comprises before the isolating light wavelength components of space, amplify the light
Beam.
17. method according to claim 16, further comprise in the first direction and be orthogonal to the of the first direction
Amplify the light beam in two directions.
18. method according to claim 17, wherein, the first direction is described parallel to the wavelength dispersion axis
The magnifying power that first light beam and the second light beam are carried out along the wavelength dispersion axis on space separation, first direction is less than second party
Upward magnifying power.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/618,324 | 2015-02-10 | ||
| US14/618,324 US9521473B2 (en) | 2015-02-10 | 2015-02-10 | Wavelength selective switch with increased frequency separation to avoid crosstalk |
| PCT/US2016/017203 WO2016130585A1 (en) | 2015-02-10 | 2016-02-09 | Wavelength selective switch with increased frequency separation to avoid crosstalk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107209328A true CN107209328A (en) | 2017-09-26 |
| CN107209328B CN107209328B (en) | 2020-09-04 |
Family
ID=56567257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680009462.7A Active CN107209328B (en) | 2015-02-10 | 2016-02-09 | Wavelength selective switch with increased frequency spacing to avoid crosstalk |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US9521473B2 (en) |
| EP (1) | EP3257176B1 (en) |
| JP (1) | JP6735293B2 (en) |
| KR (1) | KR101975310B1 (en) |
| CN (1) | CN107209328B (en) |
| AU (1) | AU2016219487A1 (en) |
| CA (1) | CA2975307A1 (en) |
| WO (1) | WO2016130585A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113703240A (en) * | 2020-05-21 | 2021-11-26 | 华为技术有限公司 | LCOS adjusting method, optical device and reconfigurable optical add-drop multiplexer |
| WO2021244107A1 (en) * | 2020-05-30 | 2021-12-09 | 华为技术有限公司 | Optical switching device, redirection method, and reconfigurable optical add-drop multiplexer and system |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109845150B (en) * | 2016-10-26 | 2020-12-15 | 华为技术有限公司 | Optical signal transmission method and device and wavelength selection switch |
| US10042121B1 (en) * | 2017-03-28 | 2018-08-07 | Nistica, Inc. | Toroidal micro lens array for use in a wavelength selective switch |
| US10784965B2 (en) * | 2018-06-01 | 2020-09-22 | Molex, Llc | Reduction of ripple arising in LCoS-based optical devices |
| US11079551B2 (en) * | 2019-01-02 | 2021-08-03 | Lumentum Operations Llc | Liquid crystal on silicon element for dual-functionality beam steering in wavelength selective switches |
| US11016441B2 (en) | 2019-02-18 | 2021-05-25 | Ii-Vi Delaware, Inc. | Optimization of wavelength selective switch using phase control of liquid crystal spatial light modulator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103676009A (en) * | 2012-09-07 | 2014-03-26 | 古河电气工业株式会社 | Optical switch |
| WO2015008403A1 (en) * | 2013-07-17 | 2015-01-22 | 住友電気工業株式会社 | Optical path control device |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6430328B1 (en) | 2000-10-13 | 2002-08-06 | William H. Culver | Optical switch |
| US7123833B2 (en) | 2001-08-09 | 2006-10-17 | Cidra Corporation | Dynamically reconfigurable optical smart node |
| US7126740B2 (en) | 2001-04-03 | 2006-10-24 | Cidra Corporation | Multifunctional optical device having a spatial light modulator with an array of micromirrors |
| US6956687B2 (en) | 2001-04-03 | 2005-10-18 | Cidra Corporation | Optical blocking filter having an array of micro-mirrors |
| US7142789B1 (en) * | 2001-07-10 | 2006-11-28 | Purdue Research Foundation | Methods and apparatus for generating a radiation pulse sequence |
| US7092599B2 (en) | 2003-11-12 | 2006-08-15 | Engana Pty Ltd | Wavelength manipulation system and method |
| US7397980B2 (en) | 2004-06-14 | 2008-07-08 | Optium Australia Pty Limited | Dual-source optical wavelength processor |
| WO2007029260A2 (en) | 2005-09-08 | 2007-03-15 | Xtellus Inc. | Optical wavelength selective router |
| KR101347510B1 (en) | 2006-02-24 | 2014-01-02 | 네오포토닉스 코포레이션 | Broadband 2 × 2 Optical Splitter |
| JP4729473B2 (en) | 2006-11-30 | 2011-07-20 | 富士通株式会社 | Light switch |
| JP5040842B2 (en) | 2008-07-24 | 2012-10-03 | 富士通株式会社 | Wavelength selective switch |
| US8300995B2 (en) | 2010-06-30 | 2012-10-30 | Jds Uniphase Corporation | M X N WSS with reduced optics size |
| GB201104235D0 (en) | 2011-03-14 | 2011-04-27 | Cambridge Entpr Ltd | Optical beam routing apparatus and methods |
| US8854597B2 (en) * | 2011-03-16 | 2014-10-07 | Finisar Corporation | Wavelength selective switch |
| JP2013101201A (en) | 2011-11-08 | 2013-05-23 | Sanyo Engineer & Construction Inc | Wavelength selection optical switch |
| US8977079B2 (en) | 2012-07-18 | 2015-03-10 | Jds Uniphase Corporation | WSS with high port isolation and close spaced ports |
| WO2014015129A1 (en) | 2012-07-19 | 2014-01-23 | Finisar Corporation | Polarization diverse wavelength selective switch |
| KR102039596B1 (en) | 2013-03-20 | 2019-11-01 | 니스티카, 인코포레이티드 | Wavelength selective switch having integrated channel monitor |
| JP2014197154A (en) * | 2013-03-29 | 2014-10-16 | 古河電気工業株式会社 | Optical operation device |
| CN103281153B (en) * | 2013-06-20 | 2016-01-20 | 中央民族大学 | A kind of Reconfigurable Optical Add/drop Multiplexer of the M × N port based on liquid crystal on silicon |
| WO2015008489A1 (en) * | 2013-07-16 | 2015-01-22 | 日本電信電話株式会社 | Optical signal processing device |
-
2015
- 2015-02-10 US US14/618,324 patent/US9521473B2/en active Active
-
2016
- 2016-02-09 AU AU2016219487A patent/AU2016219487A1/en not_active Abandoned
- 2016-02-09 KR KR1020177024394A patent/KR101975310B1/en active IP Right Grant
- 2016-02-09 CA CA2975307A patent/CA2975307A1/en not_active Abandoned
- 2016-02-09 JP JP2017560475A patent/JP6735293B2/en active Active
- 2016-02-09 EP EP16749742.9A patent/EP3257176B1/en active Active
- 2016-02-09 WO PCT/US2016/017203 patent/WO2016130585A1/en active Application Filing
- 2016-02-09 CN CN201680009462.7A patent/CN107209328B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103676009A (en) * | 2012-09-07 | 2014-03-26 | 古河电气工业株式会社 | Optical switch |
| WO2015008403A1 (en) * | 2013-07-17 | 2015-01-22 | 住友電気工業株式会社 | Optical path control device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113703240A (en) * | 2020-05-21 | 2021-11-26 | 华为技术有限公司 | LCOS adjusting method, optical device and reconfigurable optical add-drop multiplexer |
| CN113703240B (en) * | 2020-05-21 | 2022-10-11 | 华为技术有限公司 | LCOS adjusting method, optical device and reconfigurable optical add-drop multiplexer |
| WO2021244107A1 (en) * | 2020-05-30 | 2021-12-09 | 华为技术有限公司 | Optical switching device, redirection method, and reconfigurable optical add-drop multiplexer and system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018508839A (en) | 2018-03-29 |
| CN107209328B (en) | 2020-09-04 |
| JP6735293B2 (en) | 2020-08-05 |
| EP3257176A4 (en) | 2018-10-17 |
| US9521473B2 (en) | 2016-12-13 |
| CA2975307A1 (en) | 2016-08-18 |
| AU2016219487A1 (en) | 2017-08-10 |
| EP3257176B1 (en) | 2021-09-22 |
| EP3257176A1 (en) | 2017-12-20 |
| US20160234575A1 (en) | 2016-08-11 |
| KR20170110654A (en) | 2017-10-11 |
| KR101975310B1 (en) | 2019-05-07 |
| WO2016130585A1 (en) | 2016-08-18 |
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